PaleoDB taxon number: 83330
Full reference: E. D. Cope. 1867. An addition to the vertebrate fauna of the Miocene period, with a synopsis of the extinct Cetacea of the United States. Proceedings of the Academy of Natural Sciences of Philadelphia 19(4):138-157
Type specimen: Its type locality is James T. Thomas estate, which is in a Langhian offshore shelf horizon in the Calvert Formation of Maryland.
Ecology: nektobenthic carnivore